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Re: Preliminary sizing as per CAN/CSA1601
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 Subject: Re: Preliminary sizing as per CAN/CSA1601
 From: "Avicpeng" <vicpeng(nospamat)telus.net>
 Date: Sat, 4 Feb 2006 10:01:51 0800
Hi Ritesh.
If you reread the explanation of the tables on p 45 of
the 8th edition, you will see that the tables refer to limits on
widthtothickness ratios. Table 42, for example is the simple ratio for
compressiononly.
As you know, the class of section for capacity analyses is
b/t dependent for both flange and web. What happens when you have
compression and bending (beamcolumn) is that for different
Cf/phi*Cy the class of section may differ between web and flange so that
sometimes the web governs the class. The table gives the ratio at which
the class for webs changes. I.e "the class for webs ... is a
function of the ratio of the factored axial load to the axial compressive load
at yield ..." You will see that the associated flange class is given
in righthand column.
Hope this helps.

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 Re: Preliminary sizing as per CAN/CSA1601
 From: Ritesh Patel
 Re: Preliminary sizing as per CAN/CSA1601
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